Dimethylcyclam based fluoroionophore having Hg2+- and Cd2+-selective signaling behaviors

被引：77

作者：

Youn, NJ ^{[1
]}

Chang, SK ^{[1
]}

机构：

[1] Chung Ang Univ, Dept Chem, Seoul 156756, South Korea

来源：

TETRAHEDRON LETTERS | 2005年 / 46卷 / 01期

关键词：

cyclam; fluoroionophore; anthracene; Hg2+ - and Cd2+ - selectivity; chemosensor;

D O I：

10.1016/j.tetlet.2004.11.003

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Diametrically disubstituted bis(anthrylmethyl) derivative of 1,8-dimethylcyclam exhibited pronounced Hg2+- and Cd2+- selective fluorogenic behaviors in aqueous acetonitrile solution. A distinctive OFF-ON type signaling was observed for Hg3+ and Cd2+ ions in aqueous acetonitrile (CH3CN-H2O = 90:10, v/v) solution, while a selective ON-OFF type switching behavior toward Hg2+ ions was observed in solution having higher water content (CH3CN-H2O = 50:50, v/v). The detection limit for the analysis of Hg2+ ions in 50% aqueous acetonitrile was found to be 3.8 x 10(-6) M. The selective OR logic gate behavior of the prepared compound toward two toxic heavy metal ions of Hg2+ and Cd2+ ions in CH3CN-H2O (90:10, v/v) suggests the possibility as a new chemosensing device for the two important target metal ions. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：125 / 129

页数：5

共 56 条

[1] Fluorescence emission control and switching of oxymethylcrowned spirobenzopyrans by metal ion [J].